학술논문
The eROSITA Final Equatorial-Depth Survey (eFEDS): Galaxy Clusters and Groups in Disguise
Document Type
Working Paper
Author
Bulbul, Esra; Liu, Ang; Pasini, Thomas; Comparat, Johan; Hoang, Duy; Klein, Matthias; Ghirardini, Vittorio; Salvato, Mara; Merloni, Andrea; Seppi, Riccardo; Wolf, Julien; Anderson, Scott F.; Bahar, Y. Emre; Brusa, Marcella; Brueggen, Marcus; Buchner, Johannes; Dwelly, Tom; Ibarra-Medel, Hector; Chitham, Jacob Ider; Liu, Teng; Nandra, Kirpal; Ramos-Ceja, Miriam E.; Sanders, Jeremy S.; Shen, Yue
Source
A&A 661, A10 (2022)
Subject
Language
Abstract
The eROSITA Final Equatorial-Depth Survey (eFEDS), executed during the performance verification phase of the Spectrum-Roentgen-Gamma (SRG)/eROSITA telescope, was completed in Nov. 2019. One of the science goals of this survey is to demonstrate the ability of eROSITA to detect samples of clusters and groups at the final depth of the eROSITA all-sky survey. Because of the sizeable point-spread function of eROSITA, high-redshift clusters of galaxies or compact nearby groups hosting bright active galactic nuclei (AGN) can be misclassified as point sources by the source detection algorithms. A total of 346 galaxy clusters and groups in the redshift range of 0.1